Road-grader



(No Model.)

L. G. SUTTON.

ROAD GRADER.

No. 247,132. Patented Sept. 13,1881.

HIIHM INVENTOR lam Qi'. 511m,

in Cm 1* 1% 1 UNITED STATES PATENT OFFICE.

LEWIS C. SUTTON, OF JERSEYVILLE, ILLINOIS.

ROAD-GRADER.

SPECIFICATION forming part of Letters Patent No. 247,132,dated-September 13, 1881. Application filed March 21,1881. (No model.)

To all whom it may concern:

Be it known that I, LEWIS O. SUTTON, of J erseyville, in the county ofJersey and State of Illinois, have invented a new and ImprovedRoad-Grader; and I do hereby declare that the following is a full andexact description of the same, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon.

The invention herein described relates to an improvement inroad-graders; and it consists in certain details of construction,hereinafter fully described, whereby the contents of the earth box orscoop is not only more easily discharged than heretofore, but the bottomof the scoop is, by the act of discharging the load, automaticallycleared of such earth as does, when moist, adhere thereto.

In the drawings, Figure l is a side elevation of the machine; Fig. 2, aplan or top view, and Fig. 3 a front end elevation, of the same, similarletters ofreference indicating like parts in all the figures.

In Fig. 1, A represents an earth box or scoop of the ordinary form, tothe under side of which is hinged an axle, a, on each end of which isjournaled a wheel, b. It will be observed by reference to Fig. 2 thatthe axle is bent into the form of a crank, its main length, or thatportion to which the scoop is attached, being eccentric to the ends uponwhich the wheels are journaled. The object of this is to allow the scoopto be raised or lowered, as required. From the inner end of the hub ofeach of the wheels, and pivoted upon the axle, springs an iron arch, c,supporting at its middle or highest part a tongue or draft-pole, d.

At f is represented a draft-bar of the ordinary form, pivoted to thesides of the scoop at g. At this latter point is also pivoted a secondsimilarly-shaped bar, 72, adapted to span the earth-box and connect thefront part thereof with the forward end of a hand-lever, k, said leverbeing pivoted to the tongue cl at the point 0, and terminating rearwardin a handle. From the tongue depends a chain,p, to the lower extremityof which is suspended the earth-box. Forming the front or cutting edgeof the scoop is a sharpened steel bar, q. Immediately in the rear ofsaid bar is the bottom B of the earth-box, preferably made of iron, andadapted to revolve about a pivot, r. This bottom is carried upon an ironframe, a, supported beneath the under or lower edges of the two sidesand rear of the scoop, and to this frame the axle is hinged at the pointm,

rests the bottom B when the latter is turned.

back, for the purpose hereinafter explained.

At tis represented a handle, by which the bottom is actuated. Secured tothe rear end of the draft-pole or tongue 01 is a curved bar, 8,provided'with a series of holes correspond ing with a hole in the leveris, so as to retain, by the insertion of a pin, 00, the lever in anyrequired position.

The operation of the machine is as follows: The heightof the rear of thescoop from the ground is first adjusted by taking up or letting out oneor more links of the chain 19, thus raising or lowering the fulcrum uponwhich the scoop oscillates. The front edge of the earthbox is thenlowered to the ground by raising the rear end of the lever 7a, which isretained in the required position by inserting the pin 00 in whicheverhole in the bar .9 corresponds with the hole in the lever k. The load isthen transported to where it is to be discharged.

This latter operation is accomplished by simply swinging the bottom ofthe scoop round by means of the handle t, as indicated by the arrow,Fig. 2, into the position shown in dotted lines, which not only lets outthe contents of the earth-box, but at the same time scrapes the bottomclean as it slides round between the lower edge of the earth-box and theframe a, which supports it.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a road-grader, the earth box or scoop A, provided with ahorizontally-revolving bottom, B, adapted to swing round from underscoop, substantially in the manner and for the purpose herein set forth.

2. In a road-grader, the combination of the axle a, providedwith.eccentrically-journaled wheels, the scraper-box A, journaled upon theoffset part of said axle, chain 1), lifting-bar h, and lever 70, saidparts being combined for united operation substantially in the mannerand for the purpose herein set forth.

This specification signed and witnessed this 8th day of March, 1881.

LE WIS C. SUTTON.

